1156520054 has 16 divisors (see below), whose sum is σ = 1748238336. Its totient is φ = 573791400.

The previous prime is 1156520041. The next prime is 1156520119. The reversal of 1156520054 is 4500256511.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1156519999 and 1156520026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137099 + ... + 145289.

It is an arithmetic number, because the mean of its divisors is an integer number (109264896).

Almost surely, 2^1156520054 is an apocalyptic number.

1156520054 is a deficient number, since it is larger than the sum of its proper divisors (591718282).

1156520054 is a wasteful number, since it uses less digits than its factorization.

1156520054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8731.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 1156520054 is about 34007.6469929926. The cubic root of 1156520054 is about 1049.6658207887.

Adding to 1156520054 its reverse (4500256511), we get a palindrome (5656776565).

The spelling of 1156520054 in words is "one billion, one hundred fifty-six million, five hundred twenty thousand, fifty-four".